Wrench.



No. 764,248. PATENTED JULY 5, 1904.

W. F. MARKS.

WRENCH.

APPLIOATION FILED MAR. 7, 1904.

No MODEL.

Uilm

Patented July 5, 1904.

PATENT OFFICE.

WILLIAM F. MARKS, OF NOWRYTOIVN, PENNSYLVANIA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 764,248, dated July 5, 1904.

Application filed March 7, 1904. Serial No. 196,915. (No model.)

To (LZZ whom t may concern.-

Be it known that I, WILLIAM F. MARKS, a citizen of the United States of America. residing at Nowrytown, in the county of Indiana and State of Pennsylvania, have invented certain new and useful Improvements in Wrenches, of which the following' is a speciiication, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in wrenches, and more particularly to that class commonly known as monkey-wrenches; and the object of the invention is to provide a wrench of this type which may be easily and quickly adjusted, means. being provided to rigidly and securely hold the adjusted member of the wrench in any desired position.

Briefly described, my improved wrench con sists of a shank having teeth upon two of its sides and having the ordinary iixed jaw upon its one end. .Adapted to slide on this shank is an adjustable jaw, which is adapted to engage the teeth of the shank and be securely held until released for another adjustment.

In the construction of the wrench it has been the object to so construct the same in a simple manner whereby each part of the same may be readily cast and the expense of manufacture reduced to a minimum.

It has also been the object to construct a wrench which will be strong, durable, and withstand the different usages to which it is applied.

The invention further consists in the novel construction, combination, and arrangement of parts to be hereinafter more fully described, and specifically pointed out in the claim.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this application, and wherein like numerals of reference indicate like parts throughout the several Views, in which- Figure 1 is a side elevation of my improved wrench. Fig. 2 is an edge view thereof. Fig. 3 is a side elevation with one of the plates removed. Fig. 4 is a perspective view of one of the springs employed in my wrench. Fig. 5 is an edge view of a portion of a wrench,

showing the adjustable jaw in vertical section. Fig. 6 is a perspective view of the adjustable jaw with one of the plates removed. Fig. 7 is a side elevation of theremoved plate. Fig. 8 is a perspective View of one of the grippingjaws carried by the adjustable jaw.

In carrying out my invention I provide a shank 1, which is preferably rectangular in cross-section, and upon two of its sides I provide the teeth 2, and upon its upper end the fixed head or jaw 3. Adapted to slide on this shank 1 is the adjustable jaw 4, which has formedvcrtically therein an aperture 5, and through this aperture passes the shank 1 of the wrench. Formed in the sides of the jaw 4 and communicating with the vertical apcr` ture 5 are the apertures 6, in which are secured the gripping-jaws 7, said jaws having teeth 8 upon their one side, and upon the other side are attached the operating-levers 9, carry ing buttons 10 upon their lower ends. Adjacent to the aperture 6 I provide the beveled cut-away portion 1l, forming a raised portion 12, upon which the operating-levers 9 rest. This raised portion forms a fulcrum for these levers, whereby when the buttons 10 are depressed the gripping-jaw 7 will be forced outwardly and disengaged from the teeth 2 of the shank 1. On the sides of the apertures 6 I provide the cut-away portions 14, in which rest the ends 15 of the spring 16, this spring resting against thc end 17 of the operatinglever 9 and serving to normally hold the grip ping-jaws in engagement with the teeth of the shank. To secure the gripping-jaws and springs in their positions, I provide the side plates 18, which are recessed, as indicated at 19, to receive the spring 1G, and recessed, as indicated at 20, to allow the movement of the operating-levers 9, these plates being sccured on the adjustable jaw 4 by any desired Ineans, preferably by screws 21, as illustrated in the accompanying drawings.

It will be readily seen that this improved wrench may be easily adjusted by depressing the operating-levers 9 and sliding thc jaw along the shank until the desired position is reached, at which time if the operating-levers are released the spring 16 will force the gripping-jaws 7 into engagement with the shank IOO and firmly hold the same in this position. It will also be seen that the different parts ot' my improved wrench may be readily cast from any desired material and that I have dispensed with all complicated parts of wrenches commonly used and that the arrangement and disposition of these parts is such that the Wrench will need little repairing and that the parts can be removed and renewed when desired. It will be obvious that various slightychanges may be made in the details of construction without departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is#

A wrench comprising a toothed shank, a jaw VILLIAM F. MARKS,

Witnesses:

H. C. EvERT, E. E. POTTER. 

